SCENARIO: 在我的脚本中,我创建一个对象,添加公共信息,然后在循环中更新每个对象的子信息,并将该对象添加到对象数组中。 我的详细显示添加到数组的对象中的值是正确的(报告数组中的最后一项(,但 Export-csv 重复最后一个对象值。 如果我每次创建一个新对象,我能够解决这个问题。 重用同一对象会重复最后一个值,即使当我在数组中的对象上选择 * 时我可以看到它是正确的。 数组对象必须有一些内容,例如为同一对象复制的 guid。 PowerShell 5.1 在 Windows 7、Windows 2008R2、Windows 2010R2 上验证
溶液: 将对象添加到对象数组时,不要重复使用该对象。
输出:
#TYPE MyGpoSetting
"SetName","SetCategory","SetType","SetState","SetValue","SetData","SetNote","SubName","SubState","SubValue","GpoDomain","GpoName","GpoLinks","GpoGuid"
"SetName","SetCategory","SetType","SetState","SetValue","SetData","SetNote","SubName3","SubState3","SubValue3","GpoDomain","GpoName","GpoLinks","GpoGuid"
"SetName","SetCategory","SetType","SetState","SetValue","SetData","SetNote","SubName3","SubState3","SubValue3","GpoDomain","GpoName","GpoLinks","GpoGuid"
"SetName","SetCategory","SetType","SetState","SetValue","SetData","SetNote","SubName3","SubState3","SubValue3","GpoDomain","GpoName","GpoLinks","GpoGuid"
脚本:
Add-Type -TypeDefinition @"
public struct MyGpoSetting
{
public string SetName;
public string SetCategory;
public string SetType;
public string SetState;
public string SetValue;
public string SetData;
public string SetNote;
public string SubName;
public string SubState;
public string SubValue;
public string GpoDomain;
public string GpoName;
public string GpoLinks;
public string GpoGuid;
}
"@
$aoMyGpoSetting = @();
$oMyGpoSetting = New-Object -TypeName 'MyGpoSetting';
$oMyGpoSetting.SetName = 'SetName';
$oMyGpoSetting.SetCategory = 'SetCategory';
$oMyGpoSetting.SetType = 'SetType';
$oMyGpoSetting.SetState = 'SetState';
$oMyGpoSetting.SetValue = 'SetValue';
$oMyGpoSetting.SetData = 'SetData';
$oMyGpoSetting.SetNote = 'SetNote';
$oMyGpoSetting.SubName = 'SubName1';
$oMyGpoSetting.SubState = 'SubState1';
$oMyGpoSetting.SubValue = 'SubValue1';
$oMyGpoSetting.GpoDomain = 'GpoDomain';
$oMyGpoSetting.GpoName = 'GpoName';
$oMyGpoSetting.GpoLinks = 'GpoLinks';
$oMyGpoSetting.GpoGuid = 'GpoGuid';
$aoMyGpoSetting += $oMyGpoSetting;
#--- $oMyGpoSetting = New-Object -TypeName 'MyGpoSetting';
$oMyGpoSetting.SetName = 'SetName';
$oMyGpoSetting.SetCategory = 'SetCategory';
$oMyGpoSetting.SetType = 'SetType';
$oMyGpoSetting.SetState = 'SetState';
$oMyGpoSetting.SetValue = 'SetValue';
$oMyGpoSetting.SetData = 'SetData';
$oMyGpoSetting.SetNote = 'SetNote';
$oMyGpoSetting.SubName = 'SubName2';
$oMyGpoSetting.SubState = 'SubState2';
$oMyGpoSetting.SubValue = 'SubValue2';
$oMyGpoSetting.GpoDomain = 'GpoDomain';
$oMyGpoSetting.GpoName = 'GpoName';
$oMyGpoSetting.GpoLinks = 'GpoLinks';
$oMyGpoSetting.GpoGuid = 'GpoGuid';
$aoMyGpoSetting += $oMyGpoSetting;
#--- $oMyGpoSetting = New-Object -TypeName 'MyGpoSetting';
$oMyGpoSetting.SetName = 'SetName';
$oMyGpoSetting.SetCategory = 'SetCategory';
$oMyGpoSetting.SetType = 'SetType';
$oMyGpoSetting.SetState = 'SetState';
$oMyGpoSetting.SetValue = 'SetValue';
$oMyGpoSetting.SetData = 'SetData';
$oMyGpoSetting.SetNote = 'SetNote';
$oMyGpoSetting.SubName = 'SubName3';
$oMyGpoSetting.SubState = 'SubState3';
$oMyGpoSetting.SubValue = 'SubValue3';
$oMyGpoSetting.GpoDomain = 'GpoDomain';
$oMyGpoSetting.GpoName = 'GpoName';
$oMyGpoSetting.GpoLinks = 'GpoLinks';
$oMyGpoSetting.GpoGuid = 'GpoGuid';
$aoMyGpoSetting += $oMyGpoSetting;
$aoMyGpoSetting | Export-Csv -Path 'c:tempexport.csv' -Encoding 'ASCII';
这正在按预期工作。 将对象添加到数组(+=
(不会复制对象,而是在下一个"插槽"中添加指向它的引用/指针。 因此,实际上您正在向同一对象添加三个引用。 这就像在电话簿中为您最好的朋友提供 3 个条目:
John Smith - 01234 5678
Jonnie - 01234 5678
Smith, John - 01234 5678
无论你打电话给哪个,都能让你打通同一个人。
同样,每次 PowerShell 显示数组中的对象时,它实际上都会返回到同一源对象并将其显示给你。 这就是为什么它们都具有与您添加的最后一个相同的属性 - 它们实际上都是相同的属性。
正如您所发现的,每次创建一个新对象是继续的方法。